Omron F3SJ-A0920N55 Safety Light Curtain
The Omron F3SJ-A0920N55 Safety Light Curtain provides leg and body protection across a 920 mm protective height for monitoring personnel access to hazardous machine areas. Its protective sensing field consists of 19 beam axes arranged with a 50 mm beam gap, creating optical coverage across the guarded opening. An infrared LED operating at 870 nm with a 5 mm lens forms the sensing arrangement, while the NPN output configuration supports connection with compatible machine safety equipment. The unit operates from a 24 VDC supply and uses an M12 8-pin connector for electrical integration. The F3SJ-A0920N55 belongs to the F3SJ Series and forms part of the body protection safety light curtain range available within Omron machine safety products.
| Brand | Omron |
| Product | Safety Light Curtain |
| Model Number | F3SJ-A0920N55 |
Omron F3SJ-A0920N55 Safety Light Curtain - Technical Specifications
| Specification | Value |
|---|---|
| Application | Leg/body protection |
| Detection Capability | Opaque objects |
| Beam Gap | 50 mm |
| Number Of Beams | 19 axis beam |
| Protective Height | 920 mm |
| Operating Range | 0.2 to 9 m |
| Connection Method | M12 Connector 8-pin |
| Light Source | Infrared LED (870 nm) |
| Output | NPN |
| Lens Diameter | 5 mm |
| Response Time Normal Mode On Off | 11 ms |
| Response Time Normal Mode Off On | 44 ms |
| Control Output Ossd | Two NPN transistor outputs Load current: 300 mA max. Residual voltage: 2 V max. Capacitive load: 2.2 µF Leakage current: 2 mA max. |
| Ambient Illuminance | Incandescent lamp: 3000 lx max. Sunlight: 10000 lx max. |
| Startup Waiting Time | 2 s max. |
| Power Supply Voltage | 24 VDC |
| Current Consumption | Receiver: 68 mA max.; Emitter: 76 mA max. |
| Auxiliary Output Non Safety Output | One NPN transistor output Load current: 300 mA max. Residual voltage: 2 V max. Leakage current: 1 mA max. |
| Protective Circuit | Output short-circuit protection Power supply reverse polarity protection |
| Insulation Resistance | 20 M? min. (at 500 VDC) |
| Ambient Temperature | Operating: -10 to 55°C (no icing), Storage: -30 to 70°C |
| Ambient Humidity | Operating: 35% to 85% (no condensation), Storage: 35% to 95% |
| Degree Of Protection | IP65 (IEC 60529) |
| Materials | Case: Aluminum, Zinc diecast Front window: PMMA resin (acrylic) Caps: ABS resin Cable: Oil-resistant PVC |
| Weight | Main Unit: Approx. 1.4 kg Package: Approx. 2.8 kg |
The Omron F3SJ-A0920N55 is a F3SJ Safety Light Curtain commonly used in guarding, access detection, and protected-zone monitoring around automated machinery, conveyors, assembly modules, and packaging lines. It is often evaluated together with related models such as Omron F3SJ-A2105P20 (Hand protection, 15 mm beam gap, 140 axis beams, 2105 mm protective height, PNP output, M12 Connector 8-pin), and Omron F3SJ-A0870N30 (Hand/arm protection, 25 mm beam gap, 35 axis beams, 870 mm protective height, NPN output, M12 Connector 8-pin) when engineers compare optical resolution, protective height, and wiring compatibility for specific machine layouts. Considering application type, beam gap, number of beams, protective height, output configuration, and connection method helps ensure proper selection for finger, hand, or body protection categories.
